18730859

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:506

約数の個数: 16

約数和(自身を含む): 21944832

約数和(自身を除く): 3213973

約数列:

[1, 7, 83, 103, 313, 581, 721, 2191, 8549, 25979, 32239, 59843, 181853, 225673, 2675837, 18730859]

約数ペア:

[(1, 18730859), (7, 2675837), (83, 225673), (103, 181853), (313, 59843), (581, 32239), (721, 25979), (2191, 8549)]